Question

Find the volume of a pyramid with a square base, where the perimeter of the base is 4.1\text{ m}4.1 m and the height of the pyramid is 3.6\text{ m}3.6 m. Round your answer to the nearest tenth of a cubic meter.

Answer 1

it should be about 20.2 m^3

Answer 2

the answer is 1.3 m^3

Step-by-step explanation:

I had a question like this and I put the answer that was shown 20.2 m^3 and I got it wrong on Delta math. And it gave me the answer after getting it wrong.

V = 1/3 B h

perimeter of base: 4.1

side length of base: 4.1/4 = 1.025

Area of base : 1.025^2 = 1.050625

B = 1.050625

h = 3.6

v = 1/3 B h

v = 1/3 ( 1.050625) ( 3.6)

v= 1.26075

rounded to the nearest tenth is 1.3 m^3